Shitload means to have lot of something,But the actual amount varies. to figure out how much is in a shitload you must first follow a few steps.
1) pick a item -ex) pretzels
2) make it singular- ex) pretzel
3) figure out how many leters are in that word-ex) 7
4) multiply that number by 6-ex) 7x6=42
5)it takes 42 pretzels to have a shitload